How To Fix E0012 - Port type '&' is not supported for file interface

E0012 - Overview

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 012

• Message text: Port type '&' is not supported for file interface

What causes this issue?

Only port type '3' is currently supported for the file interface.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0012 - Port type '&' is not supported for file interface ?

  The SAP error message E0012, which states "Port type '&' is not supported for file interface," typically occurs in the context of SAP's Business Process Integration (BPI) or when dealing with file interfaces in SAP systems. This error indicates that the specified port type is not compatible with the file interface you are trying to use.
  
  Cause:
  
  Incorrect Port Type: The port type specified in the configuration does not match the expected port types for file interfaces. For example, if you are trying to use a port type that is meant for IDoc or RFC communication, it will not work for file-based communication.
  
  Configuration Issues: There may be a misconfiguration in the communication setup, such as incorrect settings in the transaction codes related to the file interface (e.g., WE21 for port definitions).
  Missing or Incorrectly Defined File Interface: The file interface may not be properly defined in the system, or the necessary parameters for